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Author Question: Elements in the same period generally have A) different properties. B) similar properties. C) ... (Read 59 times)

scienceeasy

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  • Posts: 565
on: Aug 27, 2018
Elements in the same period generally have
 
  A) different properties.
  B) similar properties.
  C) similar number of neutrons.
  D) similar chemical symbols.

Question 2

What is the missing particle in the reaction below?
 
  ? + 6Li  2 4He (alpha particles)
  A) 3H
  B) 1H
  C) 2H
  D) 4He

Question 3

What is the oxidation state of manganese in the compound KMnO4?
 
  A) +4
  B) +2
  C) +7
  D) -4

Question 4

A salt that can conduct electricity when it is dissolved in water is a(n)
 
  A) buffer.
  B) catalyst.
  C) electrolyte.
  D) indicator.


daiying98

  • Sr. Member
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  • Posts: 354
Reply #1 on: Aug 27, 2018
Answer to Question 1

A

Answer to Question 2

C

Answer to Question 3

C

Answer to Question 4

C


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